Car-brake.



J. H. MAXWELL.

CAR BRAKE.

APPLICATION FILED OCT. 7. I914.

1,1 58,705. Patented Nov. 2, 1915.

T s'rnrns PATENT oFFrcE.

JESSE H. MAXWELL, 0F BARBOURSVILLE, WEST VIRGINIA, ASSIGNOR OF ONE-HALF TO STEPHEN G. JOHNSTON, OF BARBOURSVILLE, WEST VIRGINIA.

GAR-BRAKE.-

Specification of Letters Patent.

7 Patented Nov. 2, 1915.

Application filed October 7, 1914. Serial No. 865,538.

To all whom it may concern Be it known that I, Jnssn H. MAXWELL, a citizen of the United States, residing at Barboursville, in the county of Cabell and State of Vest Virginia, have invented new and useful Improvements in Car-Brakesof which the following is aspecification.

This invention relates to railway car brakes and has for its primary object the provision of a structure whereby the car can be held at a stand still independent of the air brake system.

Another object of my invention is the provision of a structure wherein the parts can be readily detached from the carwhen in its'assembled form and readily. attached to another car. r V

A further object of the invention is the provision of a. structure wherein the shoe has a limited downward play soas to be in position to engage the surface of the rail when the handle is being detachably ap-' plied to the sill of a car. 1

The invention, consists in the features of construction, combination, and arrangement of parts, hereinafter fully described and claimed, reference being had to the accompanying drawing, in which:

Figure 1 is a longitudinal section through a car truck showing the brake in applied position. Fig. 2 is a perspective view of the brake. Fig. 8 is a, detail view showing the parts disassembled. Fig. 4 is an end view of a car showing my device applied thereto.

Referring to the drawings, the numeral '1 designates the-sill of a car which has in offset end 3 of the lever 4: of my break mechanism. Rigidly secured to the handle just above the offset end 3 isthe bent extremities 5 and 6 of-connecting members 7 and 8. The free extremities of the connecting members 7 and 8 are provided with elongated openings 9 and 10 adapted to loosely receive the headed ends 11 and 12 of bolts 13. The opposite ends of the bolts are threaded to receive binding nuts 14 for securing therebetween a transverse shoe 15 adapted to span the distance between the opposite rails. That surface of. the shoe which comes into contact with the treads of the wheels is shaped so as to conform to the outline of the wheel so that when the shoe is positioned between the wheel and the rail, excessive friction is created which prevents movement of the car.

It is noted that the offset end 3 is detachably connected in the apertures so that the brake can be removed when necessary. The upper and lower walls of the elongated openings 9 and 10 will contact with the surfaces of the bolt when the latter are moved out of their horizontal position, thus limiting the downward movement of the shoe-so that the latter will always be in a position with relation to the tread surfaces of the rails to be slid under the wheels when the lever is moved in a direction away from the body of the car.

From the foregoing description taken in connection with the accompanying drawings, the advantages of the construction and of the method of operation will be readily apparent to those skilled in the art to which the invention relates, and while I have described the principle of operation of the invention, together with the device which I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and that such changes may be made when desired as are within the scope of the claims.

What is claimed is: l

1. A brake for a car comprising in combination with the sill of a car having an aperture therein, a lever having a portion slidable in said aperture, a shoe, and means interposed between said shoe and lever whereby the former may be thrown into contact with the tread surface of the car wheels.

2. A brake for a car comprising in combination with the sill of a car having an aperture therein, a lever having a hook portion detachably engaging the walls of the apertures, a shoe, and means interposed between said shoe and lever whereby the former may be thrown into contact with the tread surfaces of the car wheels,said means including bolts having their adjacent ends loosely mounted in said lever.

In testimony whereof I afiix my signature in presence of two witnesses.

, JESSE H. MAXWELL.

Witnesses:

H. S. KING, M. C. JOHNSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

